Power switch, drive unit and ice maker

Abstract

A power switch is provided, comprising: a micro-power switch, comprising a contact; and a touch piece, which can be switched between a first position and a second position, in which the touch piece is positioned at a first angular position around a touching direction and a first translation position in the touching direction, so that the touch piece is separated from the contact, and in the second position, the touch piece is positioned at a second angular position around the touching direction and a second translation position in the touching direction, so that the touch piece presses the contact. The power switch has a simple structure and a low cost and has explosion-proof characteristics. The present disclosure also provides a drive device including the power switch and an ice maker including the drive device.

Description

Technical Field

[0001] The present disclosure relates to a power switch, a driving device, and an ice maker. Background Art

[0002] An ice maker is an electrical device used to make ice in a low-temperature storage unit, such as a refrigerator. The ice maker includes a driving device, which includes a housing, and the housing is used to accommodate the electrical device and driving device of the ice maker, such as a driving motor, a control circuit, etc. In order to facilitate the user to use, disassemble, repair or maintain, a power switch is provided in the ice maker, especially in the driving device of the ice maker, to disconnect the power supply of the ice maker.

[0003] Ordinary power switches will generate electric sparks during use, posing a safety hazard, while professional explosion-proof switches used as power switches have the disadvantages of high cost and large size. Summary of the invention

[0004] Some embodiments of the present disclosure provide a power switch, comprising: a micro power switch, comprising a contact; and a touch member, which can be switched between a first position and a second position, in which the touch member is positioned at a first angular position around a touching direction and at a first translation position in the touching direction, so that the touch member is separated from the contact, and in the second position, the touch member is positioned at a second angular position around the touching direction and at a second translation position in the touching direction, so that the touch member presses the contact.

[0005] The micro power switch is not easy to generate sparks when it is in action, so it has explosion-proof characteristics, low cost and small footprint. The micro power switch can be turned on and off by twisting the touch piece so that the touch piece touches the contact of the micro power switch. Therefore, the micro power switch can be turned on and off by simple operation.

[0006] For example, according to some embodiments, the touch member includes a touch rod portion and a knob portion, the knob portion is fixed to one end of the touch rod portion, the touch rod portion extends in a touching direction, and the other end of the touch rod portion is used to press the contact point.

[0007] For example, according to some embodiments, the power switch also includes: a fixed base, which includes a through hole and a first positioning end face, wherein the first positioning end face includes: a first sub-positioning surface, and a second sub-positioning surface, the second sub-positioning surface is away from the knob part in the touching direction relative to the first sub-positioning surface, the knob part includes: a second positioning end face, which faces the first positioning end face, the touch member is installed to the fixed base so that the touch rod part passes through the through hole and the second positioning end face abuts against the first positioning end face, in the first position, the second positioning end face abuts against the first sub-positioning surface, and in the second position, the second positioning end face abuts against the second sub-positioning surface.

[0008] For example, according to some embodiments, the knob portion includes a positioning protrusion, the positioning protrusion protrudes toward the touching rod portion in the touching direction and has the second positioning end surface.

[0009] For example, according to some embodiments, the fixed base further includes an annular base wall, the base wall is coaxial with the through hole and includes a notch extending along an arc.

[0010] The knob portion includes a limiting protrusion, and the limiting protrusion is received in the notch, so that the rotation of the contact member around the contact direction is limited between the first angle and the second angle.

[0011] For example, according to some embodiments, the first positioning end surface further includes a transition surface between the first sub-positioning surface and the second sub-positioning surface, and the transition surface smoothly transitions from the first sub-positioning surface to the second sub-positioning surface.

[0012] For example, according to some embodiments, the knob portion includes two independent second positioning end surfaces arranged on the same straight line, and the fixed base includes two first positioning end surfaces respectively corresponding to the two second positioning end surfaces.

[0013] For example, according to some embodiments, a substantially hemispherical locking groove is disposed in the first sub-positioning surface and the second sub-positioning surface, and a locking protrusion having a shape complementary to the locking groove is disposed in the second positioning end surface.

[0014] For example, according to some embodiments, a substantially hemispherical locking groove is disposed in the first sub-positioning surface and the second sub-positioning surface, and a locking protrusion having a shape complementary to the locking groove is disposed in the second positioning end surface.

[0015] For example, according to some embodiments, the power switch further includes an elastic member and a protruding portion protruding from the touch rod portion in a direction perpendicular to the touch direction, one end of the elastic member abuts against the fixed base, and the other end of the elastic member abuts against the protruding portion.

[0016] For example, according to some embodiments, the protruding portion is a separate retaining ring.

[0017] For example, according to some embodiments, the power switch also includes: a fixed base, which includes a through hole and a first spiral portion, wherein the knob portion includes a second spiral portion, and the touch member is installed to the fixed base so that the touch rod portion passes through the through hole and the first spiral portion and the second spiral portion are engaged.

[0018] For example, according to some embodiments, the touch member also includes a stroke limit portion, which is arranged on the opposite side of the through hole as the knob portion and is fixed to the touch rod portion, and the stroke limit portion protrudes from the touch rod portion in a direction perpendicular to the touching direction to exceed the radial dimension of the through hole.

[0019] For example, according to some embodiments, the travel limiter is a separate retaining ring.

[0020] Some embodiments of the present disclosure also provide a driving device, comprising: a shell; a motor, which is accommodated in the shell; and a power switch as described above, wherein the power switch controls the connection and disconnection of the motor to the power supply outside the shell, the fixed base and the micro power switch are fixed to the shell, the knob part is positioned outside the shell, and the touch rod part extends through the through hole to the interior of the shell.

[0021] Some embodiments of the present disclosure further provide an ice-making machine, which includes: the driving device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A perspective view of a driving device including a power switch according to an embodiment of the present disclosure is shown;

[0024] Figure 2 Shows Figure 1 Another perspective view of the drive device, wherein a portion of the housing is omitted to illustrate the drive device;

[0025] Figure 3 Shows Figure 2 Enlarged view of the middle circle I;

[0026] Figure 4 Shows Figure 2 An exploded perspective view of a power switch in FIG.

[0027] Figure 5A-5C Shows Figure 2 A view of a power switch in which the contact member is in a first position;

[0028] Figure 6A-6C Shows Figure 2 A view of a power switch in which the contact member is in a second position;

[0029] Figure 7 Shows Figure 2 A view of a fixing base for a power switch in FIG.

[0030] Figure 8 Shows Figure 2 Another view of the fixing base of the power switch in FIG.

[0031] Fig. 9 Shows Figure 2 A view of a contact member of a power switch in FIG.

[0032] Fig.10 A power switch according to another embodiment of the present disclosure is shown;

[0033] Fig.11 Shows Fig.10 A perspective view of the contact and retaining ring of the power switch in FIG. DETAILED DESCRIPTION

[0034] In the following, the power switch, the driving device and the ice maker according to the embodiments of the present disclosure are described in detail with reference to the accompanying drawings. In order to make the purpose, technical solution and advantages of the present utility model more clear, the technical solution in the embodiments of the present disclosure will be clearly and completely described in combination with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments.

[0035] Therefore, the following detailed description of the embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the present disclosure claimed for protection, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0036] Unless otherwise defined in the context, the singular includes the plural. Throughout the specification, the terms "comprising", "having", etc. are used herein to specify the presence of the features, numbers, steps, operations, elements, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, parts or combinations thereof.

[0037] In addition, even though terms including ordinal numbers such as "first," "second," etc. may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one element from other elements. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component without departing from the scope of the present disclosure.

[0038] In order to facilitate the use, disassembly, repair or maintenance of users, a power switch is set in the ice maker, especially in the driving device of the ice maker, to disconnect the power supply of the ice maker. Ordinary power switches will produce arc sparks, which poses a safety hazard. Some explosion-proof switches have disadvantages such as high cost and large size.

[0039] According to some embodiments of the present disclosure, a power switch is provided, which includes a micro power switch and a touch member. The touch member can be switched between a first position and a second position. In the first position, the touch member is positioned at a first angular position around a touching direction and a first translation position in the touching direction, so that the touch rod portion is separated from the contact point. In the second position, the touch member is positioned at a second angular position around the touching direction and a second translation position in the touching direction, so that the touch rod portion touches the contact point.

[0040] The micro power switch is not easy to generate sparks when it is in action, so it has explosion-proof characteristics, low cost and small footprint. The micro power switch can be turned on and off by twisting the touch piece so that the touch piece touches the contact of the micro power switch. Therefore, the micro power switch can be turned on and off by simple operation.

[0041] The power switch according to the embodiment of the present disclosure can be used in an ice maker, but can also be used in other equipment or devices, especially in situations where explosion-proof characteristics are required.

[0042] Figure 1-Figure 3 FIG. 2 shows a perspective view of a driving device including a power switch 1 according to an embodiment of the present disclosure. Figure 1-Figure 3As shown, the driving device includes a housing 2 and a power switch 1. In addition, the driving device may also include a motor, a transmission mechanism for transmitting power to the outside, a control circuit, a power interface, etc. The housing 2 accommodates the power switch 1, the motor, the transmission mechanism, the control circuit, etc. One end of the switching power supply 1 is connected to a power supply located outside the housing 2 through a power interface, and the other end of the switching power supply 1 is connected to an electrical device (e.g., a motor) located inside the housing 2 to control the connection and disconnection between the power supply and the electrical device.

[0043] Figure 4 Shows Figure 2 An exploded perspective view of the power switch 1 in FIG. Figure 2-4 As shown, the power switch 1 includes a micro power switch 10 , a touch member 20 and a fixed base 30 .

[0044] The micro power switch 10 includes a contact 110, which can be touched (or pressed, etc.) or left (or released) to turn on or off the micro power switch 10, thereby controlling the on and off of the power switch 1. The micro power switch 10 can be fixed to the inside of the housing 2.

[0045] The contact member 20 is used to be operated to press or release the micro power switch 10 so that the micro power switch 10 is turned on or off. Fig. 9 FIG. 2 shows a perspective view of the touch member 20 according to the present embodiment. Fig. 9 As shown, the touch member 20 includes a touch rod portion 220 and a knob portion 210. The touch rod portion 220 extends in the touch direction X, the knob portion 210 is fixed to one end of the touch rod portion 220, and the other end of the touch member 20 is used to press or leave the contact point 110. For example, the knob portion 210 and the touch rod portion 220 are integrally formed, or the knob portion 210 is fixed to one end of the touch rod portion 220 by a fastener (such as a screw) or a fastening structure.

[0046] The knob portion 210 is designed to be, for example, a shape that is convenient for a person's hand or other tools to twist. In this embodiment, the knob portion 210 includes an elongated gripping portion 211 .

[0047] In some other embodiments, a mark indicating the position of the touch member 20 may be provided on the grip portion 211 .

[0048] The touch member 20 is configured to be switchable between a first position and a second position. For example, the touch member 20 can be switched between the first position and the second position by twisting the knob portion 210. In the first position, the touch member 20 rotates to a first angular position and moves to a first translation position in the touch direction X, so that the touch rod portion 220 is separated from the contact point. In the second position, the touch member 20 rotates to a second angular position and moves to a second translation position in the touch direction X, so that the touch rod portion 220 presses the contact point.

[0049] The fixing base 30 may be fixed to the housing 2. For example, the fixing base 30 is a separate piece and may be adhered or welded to an opening of the housing 2. Alternatively, for example, the fixing base 30 may be integrally formed with the housing 2. Figure 7 and Figure 8 1 and 2 respectively show a plan view and a perspective view of a fixed base 30 according to an embodiment of the present disclosure. Figure 7 and Figure 8 As shown, the fixed base 30 includes a through hole 310 , a first positioning end surface 320 and an annular base wall 330 .

[0050] like Fig. 9 As shown, in this embodiment, the knob portion 210 may include a second positioning end surface 212. For example, the knob portion 210 may include a positioning protrusion 213, which protrudes from the knob portion 210 toward the touching rod portion 220 in the touching direction X and has a second positioning end surface 212 facing the touching rod portion, and the second positioning end surface 212 is also positioned toward the first positioning end surface 320. Figure 3 , Figure 5B and Figure 6B As shown, the touch member 20 can be mounted to the fixed base 30 so that the touch rod portion 220 passes through the through hole 310 and the second positioning end surface 212 of the positioning protrusion 213 abuts against the first positioning end surface 320 .

[0051] See also Figure 7 and Figure 8As shown, the first positioning end surface 320 includes a first sub-positioning surface 321 and a second sub-positioning surface 322, and the second sub-positioning surface 322 is away from the second positioning end surface 212 in the touch direction X relative to the first sub-positioning surface 321. In other words, the second sub-positioning surface 322 is recessed inward relative to the first sub-positioning surface 321. In other words, the second sub-positioning surface 322 is lower than the first sub-positioning surface 321. Therefore, compared with when the second positioning end surface 212 of the positioning protrusion 213 abuts against the first sub-positioning surface 321, when the second positioning end surface 212 of the positioning protrusion 213 abuts against the second sub-positioning surface 322, the touch member 20 moves in the direction toward the touch rod portion 220. In other words, the touch member 20 further extends into the housing 2 through the through hole 310, so that the pressing rod portion 220 touches the contact point 110.

[0052] The touch member 20 can be switched between the first position and the second position by twisting the knob portion 210. In the first position, the touch member 20 rotates around the touch direction X to a first angular position and translates to a first translation position in the touch direction X. In the second position, the touch member 20 rotates around the touch direction X to a second angular position and translates to a second translation position in the touch direction X.

[0053] Figure 5A-5C FIG. 1 shows a view of the power switch 1 according to the present embodiment, wherein the contact member 20 is in the first position. Figure 5A shows a plan view of the power switch 1 when the touch member 20 is in the first position, Figure 5B Shown along Figure 5A A cross-sectional view of the power switch 1 taken along line BB in FIG. Figure 5C Shows Figure 5B Magnified view of circle II in FIG.

[0054] Figure 6A-6C FIG. 1 shows a view of the power switch 1 according to the present embodiment, wherein the contact member 20 is in the second position. Fig. 6A shows a plan view of the power switch 1 when the touch member 20 is in the second position, Figure 6B Shown along Fig. 6A A cross-sectional view of the power switch 1 taken along line AA in FIG. Figure 6C Shows Figure 6B Magnified view of circle III in FIG.

[0055] For example, Figure 5A-5C As shown in FIG. 1 , when the touch member 20 is twisted to the first position by the knob portion 210, the elongated gripping portion 211 is in the Figure 5A The second positioning end surface 212 abuts against the first sub-positioning surface 321 .

[0056] For example, Figure 6A-6CAs shown in FIG. 1 , when the touch member 20 is twisted to the second position by the knob portion 210, the elongated gripping portion 211 is in the Fig. 6A The second positioning end surface 212 abuts against the second sub-positioning surface 322 .

[0057] As described above, the second sub-positioning surface 322 is away from the second positioning end surface 212 in the touch direction X relative to the first sub-positioning surface 321. Therefore, when the touch member 20 is twisted to the first position through the knob portion 210, the touch member 20 rotates to the first rotation position and moves translationally to the first translation position. Specifically, the second positioning end surface 212 abuts against the first sub-positioning surface 321, and the touch member 20 moves out of the housing 2 through the through hole 310 by a distance, so that the touch rod portion 220 is separated from the contact 110. When the touch member 20 is twisted to the second position through the knob portion 210, the touch member 20 rotates to the second rotation position and moves translationally to the second translation position. Specifically, the second positioning end surface 212 abuts against the second sub-positioning surface 322, and the touch member 20 further extends into the housing 2 through the through hole 310, so that the touch rod portion 220 presses the contact 110.

[0058] Therefore, the micro power switch 10 can be turned on or off by the touch member 20 having a simple structure. By setting the first sub-positioning surface 321 and the second sub-positioning surface 322, the translation of the touch member 20 is limited to a certain small range to avoid translation over a large distance.

[0059] Refer to Figure 7 and Figure 8 According to some embodiments of the present disclosure, the first positioning end surface 320 of the power switch 1 may further include a transition surface 323 between the first sub-positioning surface 321 and the second sub-positioning surface 322. The transition surface 323 helps the second positioning end surface 212 to smoothly transition between the first sub-positioning surface 321 and the second sub-positioning surface 322 when the touch member 20 rotates.

[0060] In addition, according to some embodiments of the present disclosure, the power switch 1 has a plurality of first positioning end faces 320, each of which is provided with a first sub-positioning surface 321, a transition surface 323 and a second sub-positioning surface 322, one or more stoppers 324 are provided between two adjacent first positioning end faces 320, and the second positioning end faces 212 correspond to the first positioning end faces 320 one by one, and the stoppers 324 restrict each second positioning end face 212 to abut against a corresponding first positioning end face 320. For example, a second positioning end face 212 can only move between the first sub-positioning surface 321 and the second sub-positioning surface 322 of a corresponding first positioning end face 320.

[0061] Therefore, the power switch 1 of the embodiment of the present disclosure can operate more reliably.

[0062] In addition, the knob portion 210 of the power switch 1 according to some embodiments of the present disclosure may include two independent second positioning end faces 212 arranged on the same straight line. The fixed base 30 may include two first positioning end faces 320. The two first positioning end faces 320 are designed to be rotationally symmetrical around the touch direction X. Therefore, the two second positioning end faces 212 correspond to the two first positioning end faces 320 respectively. For example, Figure 7 and Figure 8 As shown, the fixed base 30 includes a first sub-positioning surface 321, a transition surface 323, a second sub-positioning surface 322, one or more stoppers 324, another first sub-positioning surface 321, another transition surface 323, another second sub-positioning surface 322, and another one or more stoppers 324 in a rotational and sequential manner around the through hole 310. The first sub-positioning surface 321, the transition surface 323, and the second sub-positioning surface 322 are used to engage with one of the two independent second positioning end surfaces 212, and the other first sub-positioning surface 321, the other transition surface 323, and the other second sub-positioning surface 322 are used to engage with the other second positioning end surface 212. Such an arrangement makes the force between the touch member 20 and the fixed base 30 uniform and not prone to deflection, thereby ensuring the reliable operation of the power switch 1.

[0063] Instead of the stopper 324 or in addition to the stopper 324, the knob portion 210 may be provided with a limiting protrusion 2111. For example, the knob protrusion 2111 may be provided on the grip portion 211.

[0064] The base wall 330 of the fixed base 30 may be provided with a notch 331 extending along an arc shape. The notch 331 receives the limiting protrusion 2111, so that the rotation of the touch member 20 around the touch direction X is limited between a first angle and a second angle.

[0065] Refer to Figure 2-Figure 4 , Figure 5B and Figure 6B According to some embodiments of the present disclosure, the power switch 1 may further include an elastic member 40 and a retaining ring 50. The retaining ring 50 may be fixed to the annular groove 221 in the touch rod portion 220 (see Fig. 9 ). One end of the elastic member 40 abuts against the fixed base 30, and the other end abuts against the retaining ring 50. The elastic member 40 is in a compressed state, so as to apply a biasing force to the touch member 20 through the retaining ring 50, so that the second positioning end surface 212 can always abut against a part of the first positioning end surface 320 (for example, the first sub-positioning surface 321 or the second sub-positioning surface 322) without being separated from the first positioning end surface 320.

[0066] In this embodiment, a retaining ring 50 is used to abut against the other end of the elastic member 40. The retaining ring 50 is easy to install and has a low cost.

[0067] In other embodiments, the retaining ring 50 may be other protruding portions radially protruding from the touch rod portion 320 , as long as the elastic member 40 can abut against the protruding portion.

[0068] For example, the elastic member 40 may be a spring.

[0069] Refer to Figure 5C , Figure 6C , Figure 7-Figure 9 In some embodiments, a locking groove 3211 and a locking groove 3221 may be provided in the first sub-positioning surface 321 and the second sub-positioning surface 322, and a locking protrusion 2121 having a shape complementary to the locking groove 3211 and the locking groove 3221 may be provided in the second positioning end surface 212. When the second positioning end surface 212 abuts against the first sub-positioning surface 321, the locking protrusion 2121 may be received in the locking groove 3211. When the second positioning end surface 212 abuts against the second sub-positioning surface 322, the locking protrusion 2121 may be received in the locking groove 3221. The cooperation between the locking grooves 3211, 3221 and the locking protrusion 2121 enables the touch member 20 to move only when subjected to a torsional moment exceeding a specific threshold.

[0070] Fig.10 FIG. 1 shows a power switch 1 ′ according to another embodiment of the present disclosure. Fig.11 Shows Fig.10 A perspective view of the contact member 20' and the retaining ring 50' in FIG.

[0071] and Figure 2-9 Similar to the power switch 1 shown, the power switch 1 ′ includes a micro power switch 10 ′, a touch member 20 ′ and a fixed base 30 ′.

[0072] The micro power switch 10' includes a contact 110', which can be touched (or lightly pressed, etc.) or left (or released) to turn on or off the micro power switch 10', thereby controlling the on and off of the power switch 1'. The micro power switch 10' can be fixed to the inside of the housing 2' of the drive device.

[0073] The touch member 20' is used to be operated to touch the micro power switch 10', so that the micro power switch 10' is turned on or off. The touch member 20' includes a touch rod portion 220' and a knob portion 210'. The touch member 20' is configured to be in a first position (not shown) and a second position (see Fig.10). In the first position, the touch member 20' rotates to the first angular position and moves to the first translation position in the touch direction X', so that the touch rod portion 220' is separated from the contact point. In the second position, the touch member 20' rotates to the second angular position and moves to the second translation position in the touch direction X', so that the touch rod portion 220' touches the contact point.

[0074] The fixing base 30 ′ may be fixed into the housing 2 .

[0075] and Figure 2-9 The power switch 1 shown is different in that the fixed base 30' of the power switch 1' according to this embodiment of the present disclosure includes a through hole and a first spiral portion (not shown, for example, a threaded portion). The knob portion 210' includes a second spiral portion (not shown, for example, a threaded portion). The touch member 20' can be mounted to the fixed base 30' so that the touch rod portion 220' passes through the through hole and the first spiral portion and the second spiral portion are engaged. Therefore, the user can twist the knob portion 210' around the touch direction X' so that the touch member 20' translates in the touch direction X', so that the touch rod portion 220' touches (i.e., presses) or leaves (i.e., releases) the contact 110'.

[0076] In addition, the touch member further includes a stroke limiter, which is arranged on the opposite side of the through hole from the knob portion 210', and which protrudes from the touch rod portion 220' in a direction perpendicular to the touch direction X' to exceed the radial dimension of the through hole. By properly setting the position of the stroke limiter, the second spiral portion can be prevented from being separated from the first spiral portion.

[0077] like Fig.10 and Fig.11 As shown, in some embodiments, the travel limiter may be a retaining ring 50'.

[0078] Some embodiments of the present disclosure also provide a driving device, which includes a housing, a motor, and a power switch according to an embodiment of the present disclosure. The power switch controls the connection and disconnection of the motor to the power supply outside the housing. For example, the power switch is the power switch 1, 1' as described above, when the power switch 1, 1' is in the first position, the micro-power switch 10, 10' of the power switch 1, 1' disconnects the motor from the power supply outside the housing (for example, housing 2, 2'), and when the power switch 1, 1' is in the first position, the micro-power switch 10, 10' of the power switch 1, 1' connects the motor to the power supply outside the housing (for example, housing 2, 2'). The fixed base of the power switch and the micro-power switch can be fixed to the housing, the knob part can be positioned outside the housing, and the touch rod part extends through the through hole to the inside of the housing.

[0079] Some embodiments of the present disclosure further provide an ice maker, which includes a driving device according to an embodiment of the present disclosure. For example, when the ice maker is in normal operation, the power supply to the electrical equipment (e.g., motor, control circuit) in the driving device can be maintained through a power switch. For example, when the ice maker needs to be repaired, the power supply to the electrical equipment in the driving device can be disconnected through the power switch.

[0080] The scope of the present disclosure is not limited by the above-described embodiments but by the appended claims and their equivalents.

Claims

1. A power switch (1, 1'), comprising: A micro power switch (10, 10'), comprising a contact (110, 110'); as well as A touch member (20, 20') which can be switched between a first position and a second position, In the first position, the touch member is positioned at a first angular position about the touch direction (X, X') and at a first translation position in the touch direction, so that the touch member is separated from the contact point, In the second position, the touch member is positioned at a second angular position around the touch direction and at a second translation position in the touch direction, so that the touch member presses the touch point. The touch member comprises a touch rod part (220, 220') and a knob part (210, 210'), wherein the knob part is fixed to one end of the touch rod part, the touch rod part extends in a touch direction, and the other end of the touch rod part is used to press the contact point. The power switch also includes: A fixed base comprises a through hole (310) and a first positioning end surface (320), wherein: The first positioning end surface comprises: a first sub-positioning surface (321), and a second sub-positioning surface (322), the second sub-positioning surface being away from the knob portion in a touching direction relative to the first sub-positioning surface, The knob part comprises: a second positioning end surface (212) facing the first positioning end surface, The touch member is mounted to the fixed base so that the touch rod partially passes through the through hole and the second positioning end face abuts against the first positioning end face. In the first position, the second positioning end surface abuts against the first sub-positioning surface, In the second position, the second positioning end surface abuts against the second sub-positioning surface, The first sub-positioning surface and the second sub-positioning surface are both provided with hemispherical locking grooves (3211, 3221), The second positioning end surface is provided with a locking protrusion (2121) having a shape complementary to the locking groove.

2. The power switch according to claim 1, wherein: The knob portion comprises a positioning protrusion (213), the positioning protrusion protrudes toward the touching rod portion in a touching direction and has the second positioning end surface.

3. The power switch according to claim 1, wherein: The fixed base also includes an annular base wall (330), the base wall is coaxial with the through hole and includes a notch (331) extending along an arc. The knob portion comprises a limiting protrusion (2111), and the limiting protrusion (2111) is received in the notch, so that the rotation of the touch member around the touch direction is limited between the first angle and the second angle.

4. The power switch according to claim 1, wherein: The first positioning end surface also includes a transition surface (323) between the first sub-positioning surface and the second sub-positioning surface. The transition surface smoothly transitions from the first sub-positioning surface to the second sub-positioning surface.

5. The power switch according to claim 1, wherein: The fixed base includes a plurality of first positioning end faces, The knob portion includes a plurality of second positioning end faces, and the plurality of second positioning end faces correspond one to one with the plurality of first positioning end faces. One or more stoppers (324) are arranged between two adjacent first positioning end faces. Each second positioning end surface is constrained to abut against the corresponding first positioning end surface.

6. The power switch according to any one of claims 2 to 5, wherein: The knob portion includes two independent second positioning end surfaces arranged on the same straight line, The fixed base includes two first positioning end surfaces respectively corresponding to the two second positioning end surfaces.

7. The power switch according to any one of claims 2 to 5, wherein: The power switch further comprises an elastic member (40) and a protruding portion protruding from the touch rod portion in a direction perpendicular to the touch direction. One end of the elastic member abuts against the fixed base, The other end of the elastic member abuts against the protruding portion.

8. The power switch according to claim 7, wherein: The protruding portion is a separate retaining ring.

9. A driving device, comprising: Housing (2); a motor housed in the housing; as well as The power switch according to any one of claims 2 to 8, wherein: The power switch controls the connection and disconnection of the motor to the power supply outside the housing, The fixed base and the micro power switch are fixed to the housing, The knob portion is positioned outside the housing, and the touch rod portion extends through the through hole to the inside of the housing.

10. An ice making machine, comprising: A drive device according to claim 9.

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